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Old 09-20-2018, 07:51 PM   #1
putnam00
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Join Date: Aug 2012
Location: Grant NE
Posts: 78
trinary switch

I got a trinary switch for the ac in my 71 because i'm using dual electric cooling fans. i got a uac trinary switch it came with no instructions just 2 blue wires and 2 black wires. From what i found searching I ground the blue wire and connect the other blue to the ground relay and the black wires in series for the compressor. is this correct? or has anyone ever used one on their vehicle?

thanks
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